The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2021
Filed:
Nov. 05, 2019
Subaru Corporation, Tokyo, JP;
Atsushi Kaneko, Tokyo, JP;
Tatsuya Nishizawa, Tokyo, JP;
SUBARU CORPORATION, Tokyo, JP;
Abstract
A power-train controlling apparatus controls a power train of an engine electric hybrid vehicle. The power train is provided with an engine, a catalytic converter, an oxygen-level sensor, an engaging element, and an electric rotating machine. The power-train controlling apparatus includes a fuel injection controller, a catalyst diagnosing unit, and an engaging-element controller. The fuel injection controller stops fuel injection to the engine during coasting of the vehicle while the engaging element is engaged, introduces oxygen to the catalytic converter, and resumes the fuel injection in a fuel-rich state while the vehicle is running. The catalyst diagnosing unit diagnoses the catalytic converter after the resuming of the fuel injection. The engaging-element controller prohibits transition of the engaging element to a released state during a period between the stopping of the fuel injection and completion of the diagnosing of the catalytic converter.